{"id":169,"date":"2025-07-31T16:32:13","date_gmt":"2025-07-31T14:32:13","guid":{"rendered":"https:\/\/sciences-tec.fr\/cours\/cahierdetexte4\/2025\/07\/31\/426-fibre-optique\/"},"modified":"2026-01-18T11:35:09","modified_gmt":"2026-01-18T10:35:09","slug":"426-fibre-optique","status":"publish","type":"post","link":"https:\/\/sciences-tec.fr\/cours\/cahierdetexte4\/?p=169","title":{"rendered":"4#26 Fibre optique"},"content":{"rendered":"\n<h2 class=\"wp-block-heading\">Mon d\u00e9bit Internet<\/h2>\n\n\n\n<figure class=\"wp-block-image aligncenter size-full\"><a href=\"https:\/\/proof.ovh.net\/\"><img loading=\"lazy\" decoding=\"async\" width=\"542\" height=\"495\" src=\"https:\/\/sciences-tec.fr\/cours\/cahierdetexte4\/wp-content\/uploads\/sites\/3\/2026\/01\/test_debit.jpg\" alt=\"\" class=\"wp-image-1070\" srcset=\"https:\/\/sciences-tec.fr\/cours\/cahierdetexte4\/wp-content\/uploads\/sites\/3\/2026\/01\/test_debit.jpg 542w, https:\/\/sciences-tec.fr\/cours\/cahierdetexte4\/wp-content\/uploads\/sites\/3\/2026\/01\/test_debit-300x274.jpg 300w\" sizes=\"auto, (max-width: 542px) 100vw, 542px\" \/><\/a><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">De l&rsquo;information dans la lumi\u00e8re&#8230; on sait faire !<\/h2>\n\n\n\n<figure class=\"wp-block-video aligncenter\"><video controls src=\"http:\/\/sciences-tec.fr\/cours\/cahierdetexte4\/wp-content\/uploads\/sites\/3\/2025\/08\/7eme-compagnie.mp4\"><\/video><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">Mais pour les longues distances&#8230; et les virages ? La fibre optique !<\/h2>\n\n\n\n<figure class=\"wp-block-embed is-type-video is-provider-youtube wp-block-embed-youtube wp-embed-aspect-16-9 wp-has-aspect-ratio\"><div class=\"wp-block-embed__wrapper\">\n<iframe loading=\"lazy\" title=\"Fibre optique : Internet de A \u00e0 Z expliqu\u00e9 pour tous !\" width=\"500\" height=\"281\" src=\"https:\/\/www.youtube.com\/embed\/AWOjbDkheK8?feature=oembed\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" referrerpolicy=\"strict-origin-when-cross-origin\" allowfullscreen><\/iframe>\n<\/div><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">La fibre \u00ab\u00a0de bout en bout\u00a0\u00bb<\/h2>\n\n\n\n<p>La fibre optique est un fil en verre, aussi fin qu\u2019un cheveu, capable de passer des informations \u00e0<br>la vitesse de la lumi\u00e8re (enfin presque &#8211; 95% au mieux). Il en existe plusieurs technologies. La plus performante est celle dite du <strong>FttH (Fiber to the Home)<\/strong> ou <strong>fibre de bout en bout<\/strong>. Elle est plus ch\u00e8re et plus complexe \u00e0 mettre en \u0153uvre que les autres car elle n\u00e9cessite de d\u00e9ployer la fibre jusqu\u2019\u00e0 l\u2019abonn\u00e9. Elle est d\u00e9ploy\u00e9e depuis 2023 dans notre r\u00e9gion.<\/p>\n\n\n\n<p>C\u2019est \u00e9galement la plus p\u00e9renne parce qu\u2019elle est \u00e9volutive. Elle va pouvoir supporter \u00e0 l\u2019avenir d\u2019autres standards qui permettront d\u2019atteindre des d\u00e9bits encore plus \u00e9lev\u00e9s. \u00ab Ce nouveau r\u00e9seau que nous construisons, c\u2019est celui des cinquante prochaines ann\u00e9es \u00bb, nous annonce d\u2019embl\u00e9e avec fiert\u00e9 Jean-Bernard Dognon, directeur fibre d\u2019Orange dans les Yvelines et le Val d\u2019Oise. Ce qui explique la minutie avec laquelle les \u00e9quipes techniques op\u00e8rent sur le terrain.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Plong\u00e9e au c\u0153ur du r\u00e9seau\u2026<\/h2>\n\n\n\n<p>Le NRO, le n\u0153ud de raccordement optique, est le c\u0153ur du r\u00e9seau. C\u2019est de ce b\u00e2timent que partent tous les signaux (internet, t\u00e9l\u00e9vision, t\u00e9l\u00e9phonie) desservant les habitants de plusieurs communes \u00e0 la fois.<\/p>\n\n\n\n<p>Du NRO partent donc les milliers de c\u00e2bles en direction des domiciles des abonn\u00e9s. Mais avant de parvenir jusqu\u2019\u00e0 eux, il y a encore plusieurs \u00e9tapes comme on peut sur le sch\u00e9ma ci-dessous.<\/p>\n\n\n\n<figure class=\"wp-block-image aligncenter size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"725\" src=\"https:\/\/sciences-tec.fr\/cours\/cahierdetexte4\/wp-content\/uploads\/sites\/3\/2026\/01\/raccordement-pavillon-immeuble-1024x725.jpg\" alt=\"\" class=\"wp-image-1065\" srcset=\"https:\/\/sciences-tec.fr\/cours\/cahierdetexte4\/wp-content\/uploads\/sites\/3\/2026\/01\/raccordement-pavillon-immeuble-1024x725.jpg 1024w, https:\/\/sciences-tec.fr\/cours\/cahierdetexte4\/wp-content\/uploads\/sites\/3\/2026\/01\/raccordement-pavillon-immeuble-300x212.jpg 300w, https:\/\/sciences-tec.fr\/cours\/cahierdetexte4\/wp-content\/uploads\/sites\/3\/2026\/01\/raccordement-pavillon-immeuble-768x544.jpg 768w, https:\/\/sciences-tec.fr\/cours\/cahierdetexte4\/wp-content\/uploads\/sites\/3\/2026\/01\/raccordement-pavillon-immeuble.jpg 1051w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<p>Avant le <strong>NRO<\/strong>, en rouge, c&rsquo;est le r\u00e9seau de collecte de l&rsquo;op\u00e9rateur. La premi\u00e8re partie du r\u00e9seau d&rsquo;acc\u00e8s, en violet, est appel\u00e9e \u00ab transport \u00bb et va du <strong>NRO<\/strong> jusqu\u2019au <strong>SRO<\/strong> (sous-r\u00e9partiteur optique). La seconde  partie, en bleue, est nomm\u00e9e \u00ab distribution \u00bb et va du <strong>SRO<\/strong> au <strong>PTO<\/strong> (Point de Terminaison Optique, situ\u00e9 chez l&rsquo;abonn\u00e9). En chemin, la fibre transite par le <strong>PBO<\/strong> (Point de Branchement Optique), g\u00e9n\u00e9ralement plac\u00e9 sur le palier ou \u00e0 proximit\u00e9 de la maison.<\/p>\n\n\n\n<figure class=\"wp-block-image aligncenter size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"686\" src=\"https:\/\/sciences-tec.fr\/cours\/cahierdetexte4\/wp-content\/uploads\/sites\/3\/2026\/01\/fibre_pbo-pto-1024x686.jpg\" alt=\"\" class=\"wp-image-1062\" srcset=\"https:\/\/sciences-tec.fr\/cours\/cahierdetexte4\/wp-content\/uploads\/sites\/3\/2026\/01\/fibre_pbo-pto-1024x686.jpg 1024w, https:\/\/sciences-tec.fr\/cours\/cahierdetexte4\/wp-content\/uploads\/sites\/3\/2026\/01\/fibre_pbo-pto-300x201.jpg 300w, https:\/\/sciences-tec.fr\/cours\/cahierdetexte4\/wp-content\/uploads\/sites\/3\/2026\/01\/fibre_pbo-pto-768x514.jpg 768w, https:\/\/sciences-tec.fr\/cours\/cahierdetexte4\/wp-content\/uploads\/sites\/3\/2026\/01\/fibre_pbo-pto.jpg 1368w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">La fibre optique : la longue histoire des communications !<\/h2>\n\n\n\n<figure class=\"wp-block-video\"><video controls src=\"https:\/\/sciences-tec.fr\/cours\/wp-content\/uploads\/2025\/08\/fibre_optique.mp4\"><\/video><\/figure>\n\n\n\n<figure class=\"wp-block-image aligncenter size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"687\" src=\"https:\/\/sciences-tec.fr\/cours\/cahierdetexte4\/wp-content\/uploads\/sites\/3\/2026\/01\/photophone_complet-1024x687.jpg\" alt=\"\" class=\"wp-image-1093\" srcset=\"https:\/\/sciences-tec.fr\/cours\/cahierdetexte4\/wp-content\/uploads\/sites\/3\/2026\/01\/photophone_complet-1024x687.jpg 1024w, https:\/\/sciences-tec.fr\/cours\/cahierdetexte4\/wp-content\/uploads\/sites\/3\/2026\/01\/photophone_complet-300x201.jpg 300w, https:\/\/sciences-tec.fr\/cours\/cahierdetexte4\/wp-content\/uploads\/sites\/3\/2026\/01\/photophone_complet-768x515.jpg 768w, https:\/\/sciences-tec.fr\/cours\/cahierdetexte4\/wp-content\/uploads\/sites\/3\/2026\/01\/photophone_complet.jpg 1500w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<figure class=\"wp-block-image aligncenter size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"680\" height=\"1024\" src=\"https:\/\/sciences-tec.fr\/cours\/cahierdetexte4\/wp-content\/uploads\/sites\/3\/2026\/01\/photophone-1-680x1024.jpg\" alt=\"\" class=\"wp-image-1089\" srcset=\"https:\/\/sciences-tec.fr\/cours\/cahierdetexte4\/wp-content\/uploads\/sites\/3\/2026\/01\/photophone-1-680x1024.jpg 680w, https:\/\/sciences-tec.fr\/cours\/cahierdetexte4\/wp-content\/uploads\/sites\/3\/2026\/01\/photophone-1-199x300.jpg 199w, https:\/\/sciences-tec.fr\/cours\/cahierdetexte4\/wp-content\/uploads\/sites\/3\/2026\/01\/photophone-1-768x1156.jpg 768w, https:\/\/sciences-tec.fr\/cours\/cahierdetexte4\/wp-content\/uploads\/sites\/3\/2026\/01\/photophone-1-1021x1536.jpg 1021w, https:\/\/sciences-tec.fr\/cours\/cahierdetexte4\/wp-content\/uploads\/sites\/3\/2026\/01\/photophone-1.jpg 1040w\" sizes=\"auto, (max-width: 680px) 100vw, 680px\" \/><\/figure>\n\n\n\n<div data-wp-interactive=\"core\/file\" class=\"wp-block-file\"><object data-wp-bind--hidden=\"!state.hasPdfPreview\" hidden class=\"wp-block-file__embed\" data=\"https:\/\/sciences-tec.fr\/cours\/cahierdetexte4\/wp-content\/uploads\/sites\/3\/2026\/01\/CCF18012026.pdf\" type=\"application\/pdf\" style=\"width:100%;height:600px\" aria-label=\"Contenu embarqu\u00e9 CCF18012026.\"><\/object><a id=\"wp-block-file--media-bcf173a4-4b02-4a18-a60c-43294c203085\" href=\"https:\/\/sciences-tec.fr\/cours\/cahierdetexte4\/wp-content\/uploads\/sites\/3\/2026\/01\/CCF18012026.pdf\">CCF18012026<\/a><a href=\"https:\/\/sciences-tec.fr\/cours\/cahierdetexte4\/wp-content\/uploads\/sites\/3\/2026\/01\/CCF18012026.pdf\" class=\"wp-block-file__button wp-element-button\" download aria-describedby=\"wp-block-file--media-bcf173a4-4b02-4a18-a60c-43294c203085\">T\u00e9l\u00e9charger<\/a><\/div>\n\n\n\n<p>Source : <a href=\"https:\/\/www.01net.com\/actualites\/comment-la-fibre-optique-arrive-jusqu-a-chez-vous-1300062.html\" target=\"_blank\" rel=\"noreferrer noopener\">https:\/\/www.01net.com\/actualites\/comment-la-fibre-optique-arrive-jusqu-a-chez-vous-1300062.html<\/a><\/p>\n\n\n\n<p><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Mon d\u00e9bit Internet De l&rsquo;information dans la lumi\u00e8re&#8230; on sait faire ! Mais pour les longues distances&#8230; et les virages ? La fibre optique ! La fibre \u00ab\u00a0de bout en bout\u00a0\u00bb La fibre optique est un fil en verre, aussi fin qu\u2019un cheveu, capable de passer des informations \u00e0la vitesse de la lumi\u00e8re (enfin presque [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":170,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[9],"tags":[6],"class_list":["post-169","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-structure-fonctionnement-comportement-des-objets-et-des-systemes-techniques-a-comprendre","tag-4eme"],"acf":[],"mb":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.4 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>4#26 Fibre optique - TECHNOLOGIE | 4\u00e8me CONTENU DE LA S\u00c9ANCE<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/sciences-tec.fr\/cours\/cahierdetexte4\/?p=169\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"4#26 Fibre optique - TECHNOLOGIE | 4\u00e8me CONTENU DE LA S\u00c9ANCE\" \/>\n<meta property=\"og:description\" content=\"Mon d\u00e9bit Internet De l&rsquo;information dans la lumi\u00e8re&#8230; on sait faire ! Mais pour les longues distances&#8230; et les virages ? La fibre optique ! La fibre \u00ab\u00a0de bout en bout\u00a0\u00bb La fibre optique est un fil en verre, aussi fin qu\u2019un cheveu, capable de passer des informations \u00e0la vitesse de la lumi\u00e8re (enfin presque [&hellip;]\" \/>\n<meta property=\"og:url\" content=\"https:\/\/sciences-tec.fr\/cours\/cahierdetexte4\/?p=169\" \/>\n<meta property=\"og:site_name\" content=\"TECHNOLOGIE | 4\u00e8me CONTENU DE LA S\u00c9ANCE\" \/>\n<meta property=\"article:published_time\" content=\"2025-07-31T14:32:13+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2026-01-18T10:35:09+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/sciences-tec.fr\/cours\/cahierdetexte4\/wp-content\/uploads\/sites\/3\/2025\/07\/fibre_optique.webp\" \/>\n\t<meta property=\"og:image:width\" content=\"1000\" \/>\n\t<meta property=\"og:image:height\" content=\"600\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/webp\" \/>\n<meta name=\"author\" content=\"Nicolas Savalle\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"\u00c9crit par\" \/>\n\t<meta name=\"twitter:data1\" content=\"Nicolas Savalle\" \/>\n\t<meta name=\"twitter:label2\" content=\"Dur\u00e9e de lecture estim\u00e9e\" \/>\n\t<meta name=\"twitter:data2\" content=\"1 minute\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\\\/\\\/sciences-tec.fr\\\/cours\\\/cahierdetexte4\\\/?p=169#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/sciences-tec.fr\\\/cours\\\/cahierdetexte4\\\/?p=169\"},\"author\":{\"name\":\"Nicolas Savalle\",\"@id\":\"https:\\\/\\\/sciences-tec.fr\\\/cours\\\/cahierdetexte4\\\/#\\\/schema\\\/person\\\/b171e5f401707ffaefb35f3a9b01ce68\"},\"headline\":\"4#26 Fibre optique\",\"datePublished\":\"2025-07-31T14:32:13+00:00\",\"dateModified\":\"2026-01-18T10:35:09+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\\\/\\\/sciences-tec.fr\\\/cours\\\/cahierdetexte4\\\/?p=169\"},\"wordCount\":405,\"commentCount\":0,\"publisher\":{\"@id\":\"https:\\\/\\\/sciences-tec.fr\\\/cours\\\/cahierdetexte4\\\/#\\\/schema\\\/person\\\/b171e5f401707ffaefb35f3a9b01ce68\"},\"image\":{\"@id\":\"https:\\\/\\\/sciences-tec.fr\\\/cours\\\/cahierdetexte4\\\/?p=169#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/sciences-tec.fr\\\/cours\\\/cahierdetexte4\\\/wp-content\\\/uploads\\\/sites\\\/3\\\/2025\\\/07\\\/fibre_optique.webp\",\"keywords\":[\"4\u00e8me\"],\"articleSection\":[\"Structure, fonctionnement, comportement : des OST \u00e0 comprendre\"],\"inLanguage\":\"fr-FR\",\"potentialAction\":[{\"@type\":\"CommentAction\",\"name\":\"Comment\",\"target\":[\"https:\\\/\\\/sciences-tec.fr\\\/cours\\\/cahierdetexte4\\\/?p=169#respond\"]}]},{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/sciences-tec.fr\\\/cours\\\/cahierdetexte4\\\/?p=169\",\"url\":\"https:\\\/\\\/sciences-tec.fr\\\/cours\\\/cahierdetexte4\\\/?p=169\",\"name\":\"4#26 Fibre optique - 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TECHNOLOGIE | 4\u00e8me CONTENU DE LA S\u00c9ANCE","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/sciences-tec.fr\/cours\/cahierdetexte4\/?p=169","og_locale":"fr_FR","og_type":"article","og_title":"4#26 Fibre optique - TECHNOLOGIE | 4\u00e8me CONTENU DE LA S\u00c9ANCE","og_description":"Mon d\u00e9bit Internet De l&rsquo;information dans la lumi\u00e8re&#8230; on sait faire ! Mais pour les longues distances&#8230; et les virages ? La fibre optique ! La fibre \u00ab\u00a0de bout en bout\u00a0\u00bb La fibre optique est un fil en verre, aussi fin qu\u2019un cheveu, capable de passer des informations \u00e0la vitesse de la lumi\u00e8re (enfin presque [&hellip;]","og_url":"https:\/\/sciences-tec.fr\/cours\/cahierdetexte4\/?p=169","og_site_name":"TECHNOLOGIE | 4\u00e8me CONTENU DE LA S\u00c9ANCE","article_published_time":"2025-07-31T14:32:13+00:00","article_modified_time":"2026-01-18T10:35:09+00:00","og_image":[{"width":1000,"height":600,"url":"https:\/\/sciences-tec.fr\/cours\/cahierdetexte4\/wp-content\/uploads\/sites\/3\/2025\/07\/fibre_optique.webp","type":"image\/webp"}],"author":"Nicolas Savalle","twitter_card":"summary_large_image","twitter_misc":{"\u00c9crit par":"Nicolas Savalle","Dur\u00e9e de lecture estim\u00e9e":"1 minute"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"Article","@id":"https:\/\/sciences-tec.fr\/cours\/cahierdetexte4\/?p=169#article","isPartOf":{"@id":"https:\/\/sciences-tec.fr\/cours\/cahierdetexte4\/?p=169"},"author":{"name":"Nicolas Savalle","@id":"https:\/\/sciences-tec.fr\/cours\/cahierdetexte4\/#\/schema\/person\/b171e5f401707ffaefb35f3a9b01ce68"},"headline":"4#26 Fibre optique","datePublished":"2025-07-31T14:32:13+00:00","dateModified":"2026-01-18T10:35:09+00:00","mainEntityOfPage":{"@id":"https:\/\/sciences-tec.fr\/cours\/cahierdetexte4\/?p=169"},"wordCount":405,"commentCount":0,"publisher":{"@id":"https:\/\/sciences-tec.fr\/cours\/cahierdetexte4\/#\/schema\/person\/b171e5f401707ffaefb35f3a9b01ce68"},"image":{"@id":"https:\/\/sciences-tec.fr\/cours\/cahierdetexte4\/?p=169#primaryimage"},"thumbnailUrl":"https:\/\/sciences-tec.fr\/cours\/cahierdetexte4\/wp-content\/uploads\/sites\/3\/2025\/07\/fibre_optique.webp","keywords":["4\u00e8me"],"articleSection":["Structure, fonctionnement, comportement : des OST \u00e0 comprendre"],"inLanguage":"fr-FR","potentialAction":[{"@type":"CommentAction","name":"Comment","target":["https:\/\/sciences-tec.fr\/cours\/cahierdetexte4\/?p=169#respond"]}]},{"@type":"WebPage","@id":"https:\/\/sciences-tec.fr\/cours\/cahierdetexte4\/?p=169","url":"https:\/\/sciences-tec.fr\/cours\/cahierdetexte4\/?p=169","name":"4#26 Fibre optique - 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